HomeAir and Fuel Delivery > FiltersBaldwin BF9903-SP Fuel Water Separator Filter
Part #: BF9903-SP

Baldwin BF9903-SP Fuel Water Separator Filter

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Overview of Baldwin BF9903-SP Fuel Water Separator Filter

The Baldwin BF9903-SP fuel water separator filter is designed to provide reliable fuel filtration for Caterpillar equipment as well as Kenworth and Western Star trucks. This filter helps protect your engine by efficiently separating water from fuel, ensuring cleaner fuel delivery and improved engine performance.

  • Compatible with Caterpillar equipment, Kenworth, and Western Star trucks
  • Includes integral gasket and two O-rings for proper sealing
  • Standpipe and sensor port thread size: 9/16-18
  • Height: 9 7/32 inches (234.2 mm)
  • Outside diameter: 4 1/4 inches (108 mm)
  • Replaces Caterpillar part number 3261641 and Fleetguard FS19968

Detailed Product Description

The Baldwin BF9903-SP fuel water separator filter is engineered to meet the filtration needs of heavy-duty diesel engines found in Caterpillar machinery and trucks from Kenworth and Western Star. With a height of 9 7/32 inches and an outside diameter of 4 1/4 inches, this filter fits applications requiring a 14 threads per inch standpipe with a 9/16-18 sensor port thread. The filter comes with an integral gasket and two O-rings to ensure a secure seal and prevent leaks. Note that the furnished O-ring must be installed on the post to maintain the seal integrity. This filter replaces Caterpillar 3261641 and Fleetguard FS19968, making it a direct replacement option for compatible equipment.

Applications and Problem Solving

  • Prevents water contamination in fuel systems of Caterpillar equipment
  • Protects fuel injectors and pumps in Kenworth and Western Star trucks
  • Reduces engine wear caused by fuel impurities
  • Helps maintain consistent fuel flow and engine performance
  • Minimizes downtime due to fuel system failures

Installation Notes and Tips

When installing the Baldwin BF9903-SP fuel water separator filter, ensure the furnished O-ring is properly installed on the post to achieve a reliable seal. Verify the sensor port thread size of 9/16-18 matches your equipment requirements. Confirm compatibility with your specific Caterpillar, Kenworth, or Western Star model before installation. Proper torque and alignment during installation will help prevent leaks and ensure optimal filter performance.

Quality Assurance

Baldwin filters are manufactured to meet industry standards for filtration efficiency and durability. The BF9903-SP is designed to provide consistent performance in demanding environments. While no specific warranty information is provided, Baldwin products typically adhere to strict quality control processes to ensure reliability in heavy-duty applications.

BrandBaldwin
Part NumberBF9903-SP
ContainsStandpipe;sensor port thread: 9/16-18
Fits"caterpillar equipment; kenworth, western star trucks"
Height9 7/32
Height (mm)234.2
Integral Gasket[1] included
NotesCaution: furnished o-ring must be installed on post for seal
O-Ring[2] included
Outside Diameter 14 1/4
Outside Diameter 1 (mm)108
Per Inch14
ReplacesCaterpillar 3261641; fleetguard fs19968
Thread1

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